I worked out that you must do a bus shelter(working out for division) In this way you must do 300 divided by 9. You have to do how many 9 go into 3 = 0.So you pass the 3 to the 0 =30.But there are no 30 in the 9 time tables so you do the nearest number that is near to 30 that is in the 9 time table and it is 27.After that yo count to how many there is till 30 =3. You repeat that step again and it will leave you with a remainder.